Let’s get familiar with Rock Salt and Grit

The UK weather is always up and down. One day it is clear, the next it is raining, and the day after it’s snowing. You need to make sure you are ready for anything.

We know that stuff like rock salt and grit are confusing. We have put together this guide to try and help you out.

Why rock salt and grit?

Rock salt is used because it has a lower freezing point than water. When you spread rock salt onto a road or path, the rock salt spreads across the road when people walk over it, or cars drive over it. When this happens, it stops ice from forming.

You do need to know that rock salt isn’t perfect. Rock salt will have little effect on temperatures below minus five. It will have hardly any effect on temperatures below minus ten.

There are two different types of rock salt, brown salt and white salt. Each one has its own advantages to using it.

Brown Salt:

  • Drier form of grit that is easier to spread
  • Cheaper
  • Less impact on the environment

White salt:

  • Cleaner product – won’t leave a speck of dirt after use, and it won’t ruin paving
  • Recommended for use in public areas

When is the best time to spread salt?

The best time to spread rock salt is before freezing temperatures are expected. Spreading an even layer of salt on your surfaces before freezing temperatures, will help prevent the snow/rain from freezing. Spreading rock salt before the cold temperatures hit will also save on the amount of rock salt needed to make things safe.

We recommend you use weather websites to see when freezing weather is expected.

How much salt will I need?

The amount of rock salt to be used varies depending on the temperature and location. For example, steep hills and sharp bends will benefit from more rock salt compared to flat and straight roads.

However, we recommend that 10-15 grams of rock salt be spread per square metre. This amount can increase to 20-40 grams if weather conditions are worse or if it has rained before freezing temperatures are predicted.

For example:

500 square metres area = 5000 – 7500 grams of rock salt

If you have a 6-cu ft grit bin that holds 175kg, you can cover the area at least 23 times.

If you’d like to find out more about the rock salt we have available, please contact our sales team on 01777 858009 or email sales@gritbins.net